DALLAS - Dallas City Council has approved a lease agreement that will bring about the construction of the 400-acre Trinity Forest Golf Course. The City of Dallas, AT&T Inc., and Southern Methodist University are building the Trinity River Golf Course on an old landfill at Loop 12 near Interstate 45 in southern Dallas.

The council authorized a 40-year lease agreement with the Company of Trinity Forest Golfers, the nonprofit entity that will control the Trinity River Golf Course, which is expected to cost $20 million to $60 million to develop.

The Four Seasons in Irving has played home to the Byron Nelson Championship since 1983. The tournament is scheduled to move to Dallas in 2019.

"The new golf course will address specific needs that are not being met at the current location, such as the golf course design," said Jeremy Stone, a real estate consultant of Wylie-based Stone Hospitality Real Estate, which specializes in market studies and feasibility work for the golf industry.

"This will bring people to downtown Dallas and strengthen the core," Stone said, adding that AT&T's clout could bring more events to the Trinity River Golf Course.